Analysis Summary
Notes:
- 1) No attempt has been made to eliminate the non-significant decimal places.
- 2) This batgrbproduct analysis is done using the HEASARC data.
- 3) This batgrbproduct analysis is using the flight position for the mask-weighting calculation.
======================================================================
BAT GRB EVENT DATA PROCESSING REPORT
Process Script Ver: batgrbproduct v2.46
Process Start Time: Mon Jan 13 23:29:21 EST 2014
Host Name: batevent1
Current Working Dir: /local/data/batevent/batevent_reproc/trigger449549
======================================================================
Trigger: 00449549 Segment: 000
BAT Trigger Time: 322154836.48 [s; MET]
Trigger Stop: 322154837.504 [s; MET]
UTC: 2011-03-18T15:27:09.712860 [includes UTCF correction]
Where From?: TDRSS position message
BAT
RA: 211.695156717948 Dec: -51.5589590244306 [deg; J2000]
Catalogged Source?: NO
Point Source?: YES
GRB Indicated?: YES [ by BAT flight software ]
Image S/N Ratio: 7.14
Image Trigger?: NO
Rate S/N Ratio: 11.4017542509914 [ if not an image trigger ]
Image S/N Ratio: 7.14
Analysis Position: [ source = BAT ]
RA: 211.695156717948 Dec: -51.5589590244306 [deg; J2000]
Refined Position: [ source = BAT pre-slew burst ]
RA: 211.692601322033 Dec: -51.566952568068 [deg; J2000]
{ 14h 06m 46.2s , -51d 34' 01.0" }
+/- 1.63519473318821 [arcmin] (estimated 90% radius based on SNR)
+/- 0.700347054148985 [arcmin] (formal 1-sigma fit error)
SNR: 15.0667340834447
Angular difference between the analysis and refined position is 0.488992 arcmin
Partial Coding Fraction: 0.8515625 [ including projection effects ]
Duration
T90: 4.78799992799759 +/- 0.56483621211635
Measured from: -1.43999999761581
to: 3.34799993038177 [s; relative to TRIGTIME]
T50: 2.17599993944168 +/- 0.664207815756813
Measured from: 0.195999979972839
to: 2.37199991941452 [s; relative to TRIGTIME]
Fluence
Peak Flux (peak 1 second)
Measured from: 0.755999982357025
to: 1.75599998235703 [s; relative to TRIGTIME]
Total Fluence
Measured from: -1.69200003147125
to: 3.68799996376038 [s; relative to TRIGTIME]
Band 1 Band 2 Band 3 Band 4
15-25 25-50 50-100 100-350 keV
Total 0.057001 0.177325 0.124861 0.040713
0.014680 0.014155 0.012682 0.011578 [error]
Peak 0.026981 0.033930 0.025509 0.010671
0.006545 0.006226 0.005514 0.005105 [error]
[ fluence units of on-axis counts / fully illuminated detector ]
======================================================================
====== Table of the duration information =============================
Value tstart tstop
T100 5.380 -1.692 3.688
T90 4.788 -1.440 3.348
T50 2.176 0.196 2.372
Peak 1.000 0.756 1.756
====== Spectral Analysis Summary =====================================
Model : spectral model: simple power-law (PL) and cutoff power-law (CPL)
Ph_index : photon index: E^{Ph_index}
Ph_90err : 90% error of the photon index
Epeak : Epeak in keV
Epeak_90err: 90% error of Epeak
Norm : normalization at 50 keV in both the PL model and CPL model
Nomr_90err : 90% error of the normalization
chi2 : Chi-Squared
dof : degree of freedo
=== Time-averaged spectral analysis ===
(Best model with acceptable fit: PL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -1.092 -0.169 0.174 - - - 5.09e-03 -5.06e-04 5.06e-04 59.130 57
CPL -0.170 -0.750 0.938 103.265 -29.553 201.992 1.42e-02 -7.95e-03 2.57e-02 54.560 56
=== 1-s peak spectral analysis ===
(Best model with acceptable fit: PL)
Model Ph_index Ph_90err_low Ph_90err_hi Epeak Epeak_90err_low Epeak_90err_hi Norm Nomr_90err_low Norm_90err_hi chi2 dof
PL -1.322 -0.359 0.369 - - - 5.98e-03 -1.19e-03 1.19e-03 37.360 57
CPL -1.320 -0.359 1.098 9999.360 -9999.360 -9999.360 6.01e-03 -1.20e-03 3.34e-02 37.360 56
=== Fluence/Peak Flux Summary ===
Model Band1 Band2 Band3 Band4 Band5 Total
15-25 25-50 50-100 100-350 15-150 15-350 keV
Fluence PL 2.39e-08 5.64e-08 1.06e-07 4.80e-07 2.87e-07 6.66e-07 erg/cm2
90%_error_low -4.54e-09 -6.69e-09 -1.19e-08 -1.11e-07 -3.08e-08 -1.19e-07 erg/cm2
90%_error_hi 4.83e-09 6.61e-09 1.19e-08 1.34e-07 3.11e-08 1.39e-07 erg/cm2
Peak flux PL 2.08e-01 2.32e-01 1.86e-01 2.47e-01 7.17e-01 8.73e-01 ph/cm2/s
90%_error_low -7.28e-02 -5.24e-02 -4.58e-02 -1.07e-01 -1.44e-01 -1.79e-01 ph/cm2/s
90%_error_hi 8.05e-02 5.10e-02 4.51e-02 1.55e-01 1.45e-01 1.84e-01 ph/cm2/s
Fluence CPL 2.00e-08 6.12e-08 1.12e-07 1.46e-07 2.65e-07 3.40e-07 erg/cm2
90%_error_low -5.30e-09 -8.02e-09 -1.36e-08 -8.44e-08 -3.69e-08 -9.00e-08 erg/cm2
90%_error_hi 5.66e-09 8.39e-09 1.39e-08 2.23e-07 3.63e-08 2.21e-07 erg/cm2
Peak flux CPL 2.08e-01 2.33e-01 1.86e-01 2.47e-01 7.17e-01 8.72e-01 ph/cm2/s
90%_error_low -7.83e-02 -5.23e-02 -4.52e-02 -2.47e-01 -1.50e-01 -1.82e-01 ph/cm2/s
90%_error_hi 4.62e-02 5.74e-02 4.57e-02 7.93e-02 1.45e-01 1.71e-01 ph/cm2/s
======================================================================
Special notes of this burst